The model has real world scale and can be further subdivided without problems. For the preview images it was subdivided one time and the true poly count is shown in the last preview image.
All used textures and maps are included: one texture / diffuse map, one glossy map (invert for roughness), one subsurface map, one subsurface colour map, one transparency map and one normal map. Every image measures 5000 x 5000 px. UVs are unwrapped and everything is named properly.
Do not hesitate to ask any questions.